User, Extended Users and Roles. Issue.

Orchard.ContentManagement.DefaultContentManager - NullReferenceException thrown from IContentHandler by Orchard.Roles.Handlers.UserRolesPartHandler System.NullReferenceException: Object reference not set to an instance of an object. at Orchard.Roles.Handlers.UserRolesPartHandler.<.ctor>b__1(UserRolesPartRecord x) at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext() at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection) at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source) at Orchard.Roles.Handlers.UserRolesPartHandler.<.ctor>b__0(LoadContentContext context, UserRolesPart userRoles) at Orchard.ContentManagement.Handlers.ContentHandler.Orchard.ContentManagement.Handlers.IContentHandler.Loaded(LoadContentContext context) in d:\wwwroot\web.oef.com\halo\Site\src\Orchard\ContentManagement\Handlers\ContentHandler.cs:line 238 at Orchard.InvokeExtensions.Invoke[TEvents](IEnumerable`1 events, Action`1 dispatch, ILogger logger) in d:\wwwroot\web.oef.com\halo\Site\src\Orchard\InvokeExtensions.cs:line 17

This happens when a new Client User is created, although this new user is created correctly. The Client Users are extended Orchard Users.

The Handler of the Client Users has a ActivatingFilter to associate to the UserPart and to the Roles.